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PR bootstrap/80486 - spurious -Walloc-size-larger-than and -Wstringop-overflow in dominance.c during profiledbootstrap

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gcc/ChangeLog:

	PR bootstrap/80486
	* dominance.c (dom_info::m_n_basic_blocks): Change type to unsigned.
	(new_zero_array): Adjust signature.
	(dom_info::dom_init): Used unsigned rather that size_t.
	(dom_info::dom_info): Same.

From-SVN: r247261
This commit is contained in:
Martin Sebor 2017-04-25 17:18:39 +00:00 committed by Martin Sebor
parent 7629ae90d8
commit 8e640712d5
2 changed files with 15 additions and 6 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2017-04-25 Martin Sebor <msebor@redhat.com>
PR bootstrap/80486
* dominance.c (dom_info::m_n_basic_blocks): Change type to unsigned.
(new_zero_array): Adjust signature.
(dom_info::dom_init): Used unsigned rather that size_t.
(dom_info::dom_info): Same.
2017-04-25 Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>
Jakub Jelinek <jakub@redhat.com>

13
gcc/dominance.c
View File

@ -125,7 +125,7 @@ private:
bitmap m_fake_exit_edge;
/* Number of basic blocks in the function being compiled. */
size_t m_n_basic_blocks;
unsigned m_n_basic_blocks;
/* True, if we are computing postdominators (rather than dominators). */
bool m_reverse;
@ -148,7 +148,7 @@ void debug_dominance_tree (cdi_direction, basic_block);
`x = new T[num] {};'. */
template<typename T>
inline T *new_zero_array (size_t num)
inline T *new_zero_array (unsigned num)
{
T *result = new T[num];
memset (result, 0, sizeof (T) * num);
@ -160,14 +160,15 @@ inline T *new_zero_array (size_t num)
void
dom_info::dom_init (void)
{
size_t num = m_n_basic_blocks;
unsigned num = m_n_basic_blocks;
m_dfs_parent = new_zero_array <TBB> (num);
m_dom = new_zero_array <TBB> (num);
m_path_min = new TBB[num];
m_key = new TBB[num];
m_set_size = new unsigned int[num];
for (size_t i = 0; i < num; i++)
for (unsigned i = 0; i < num; i++)
{
m_path_min[i] = m_key[i] = i;
m_set_size[i] = 1;
@ -221,13 +222,13 @@ dom_info::dom_info (function *fn, cdi_direction dir)
dom_info::dom_info (vec<basic_block> region, cdi_direction dir)
{
m_n_basic_blocks = region.length ();
unsigned int nm1 = m_n_basic_blocks - 1;
unsigned nm1 = m_n_basic_blocks - 1;
dom_init ();
/* Determine max basic block index in region. */
int max_index = region[0]->index;
for (size_t i = 1; i <= nm1; i++)
for (unsigned i = 1; i <= nm1; i++)
if (region[i]->index > max_index)
max_index = region[i]->index;
max_index += 1; /* set index on the first bb out of region. */